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Benson Gou


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Smart Electric Grid

53 total contributions since 2017

Founder, Smart Electric Grid

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Question


How to read strings from a txt file?
Dear All, I need to read strings from a txt file which contains numerical data and strings. The file content is as follows: mo...

1 day ago | 1 answer | 0

1

answer

Question


How to read a list of strings in a txt file?
Dear All, I need to read a txt file which contains a list of names with different lengths. Here is my txt file: mynames: OAKF...

1 day ago | 1 answer | 0

1

answer

Question


An error of using fprintf
Dear All, When I tried to use fprintf to print numerical data and char in the same row, here is my code: fprintf(fileID, ' ...

3 days ago | 1 answer | 0

1

answer

Question


Looking for the Source code of built in function ldl.m
Dear All, I am trying to use Matlab Coder to convert my Matlab code into C code. But there are a number of built in functions t...

9 days ago | 2 answers | 0

2

answers

Question


How to plot a big network showing node ID?
Dear All, I used plot to display a bid network with 3000 nodes. But the graph does not show the node ID. I am wondering if it i...

24 days ago | 0 answers | 0

0

answers

Question


How to generate a standalone application for Linux?
Dear All, I have a Matlab code. The user does not have Matlab and his platform is Linux not Windows. In order for the user to u...

2 months ago | 0 answers | 0

0

answers

Question


Can I use web compiler to build a web demo for the users?
Dear All, I do not know if it is possible to use web compiler to build up a web demo for the users of our software. The users c...

2 months ago | 1 answer | 0

1

answer

Question


Why is my exe file rejected to download and install in a business computer?
Dear All, I generated an exe file using Matlab compiler. I zipped it and sent the zipped package to a customer. But the custome...

2 months ago | 1 answer | 0

1

answer

Question


How to solve this problem when my friend downloaded my standalone application?
Dear All, I used Matlab compiler to generate a standalone application package. I sent it to my friend to test. But he feedback...

2 months ago | 0 answers | 0

0

answers

Question


Why did I get different print format in the output txt file?
Dear All, I used Matlab compiler to generate a standalone application exe file. I then tested it in 3 different computers. I ob...

2 months ago | 1 answer | 0

1

answer

Question


How to get UTC time in my program?
Dear All, I am wondering if it is pissible to get the UTC time in my program. Do I need the internet avaibale if I want to get ...

2 months ago | 1 answer | 0

1

answer

Question


Why the user was asked to install Matlab runtime for my standalone application?
Dear All, When I created a standalone application exe file, I used the selection "Runtime is included in the package". But the ...

3 months ago | 1 answer | 0

1

answer

Question


Can I write a builtin Clock in my standalone application exe file?
Dear All, I am using the datetime to control the days the users can use our standalone application code. But I found a flaw of ...

3 months ago | 1 answer | 0

1

answer

Question


How to delete the logo when using Matlab compiler?
Dear All, I want to delete the logo when using Matlab compiler. Would anyone know how to delete it? Thanks in advance. Benso...

3 months ago | 1 answer | 0

1

answer

Question


How to write my Matlab code so that its standalone application program takes multiple input files?
Dear All, I want to design my standalone application code (.exe file generated by Matlab compiler) which takes input files as f...

3 months ago | 1 answer | 0

1

answer

Question


How to find the absolution date?
Dear All, I think it is hard to find out the absolute date (current date). Because the computer date can be changed, for exampl...

3 months ago | 1 answer | 0

1

answer

Question


How to print text in an existing txt file in an existing txt file?
Dear All, I tried the following cases: 1. fprintf('Hello <strong>bold</strong> world.\n') 2. fileID = fopen('GeneralResults.t...

4 months ago | 1 answer | 0

1

answer

Question


How to print some text in a txt file in another folder?
Dear All, Hope this message finds you all being safe and healthy. I am trying to print some text and save them in a txt file ...

4 months ago | 3 answers | 0

3

answers

Question


How to find a minimal number of rows in a sparse matrix to form a square sub-matrix for a given row?
Dear All, I have a big sparse matrix A. For a given row, is it possible for me to find the minimal number of rows in A to form ...

6 months ago | 1 answer | 1

1

answer

Question


How to quickly find the column index of the last non-zero element in all rows in a sparse matrix?
Hi, All, I have a big sparse matrix A. I want to find out the column index of the Last non-zero element in all rows from the en...

6 months ago | 5 answers | 0

5

answers

Question


How to quickly find the minimal number of rows in a sparse matrix to form a full-rank sub-matrix?
Dear All, I have a big sparse matrix A. For a given row, is it possible for me to find the minimal number of rows in A to form ...

6 months ago | 1 answer | 0

1

answer

Question


How to quickly find the index of each integer in an ascend array?
Hi, All, I have an array which has an ascend integers. Now I want to find the index of the first integer in this array. For exa...

6 months ago | 1 answer | 0

1

answer

Question


How to quickly find the first non-zero element without iterations in all columns in a sparse matrix?
Hi, All, I have a big sparse matrix A. I want to find out the first non-zero element in all columns from the top. Here is my co...

6 months ago | 4 answers | 0

4

answers

Question


How to quickly find the maximum group of same rows in a matrix?
Dear All, I have a matrix and there exist identical rows in the matrix. I want to find the maximum group of identical rows in t...

10 months ago | 1 answer | 0

1

answer

Question


Looking for a code in Matlab optimization
Dear All, I do not know if a code exists in Matlab optimization for the following integer linear programming. Min ||A*x - b|...

11 months ago | 1 answer | 0

1

answer

Question


How to improve the accuracy of lu decomposition?
Dear All, I did the following calculation and found lu decomposition is Not accurate as I expected. For a set of linear equatio...

1 year ago | 3 answers | 0

3

answers

Question


How to fix an error in Parallel Processing?
Dear All, When I tried to use parfor to run my code, I always got the following error message (I defined the variable "red" at ...

1 year ago | 0 answers | 0

0

answers

Question


Problems encountered in Parallel Processing
Dear All, I tried to use parfor to run my code which is given as follows: function [A,B] = temp_test(x) a = [1:2*x]; b = [1:x...

1 year ago | 1 answer | 0

1

answer

Question


Can we calculate the roots of polynomials with matrix coefficients?
Dear All, I have a polynomial which has matrix coefficients. For example, I have the following equation: [1 0;0 1]*[x_1^2; x_2...

1 year ago | 1 answer | 0

1

answer

Question


A Question About the exe file generated by Matlab Compiler
Dear All, If I generate an exe file using Matlab Compiler, can I still use this exe file after Matlab Compiler gets expired? Wh...

1 year ago | 1 answer | 0

1

answer

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